Surgery – Truss – Pad
Patent
1993-04-30
1995-07-18
Jaworski, Francis
Surgery
Truss
Pad
128782, A61B 800
Patent
active
054332010
ABSTRACT:
Apparatus for assessing posture, limb positions, and limb movements comprising a transmitter and a receiver for application to respective first and second skin positions, a microprocessor, and a biofeedback stimulus unit. The microprocessor measures the travel time of signals between the transmitter and the receiver, assesses the distance between the first and second skin positions based on the travel time of the signals between the transmitter and receiver, generates an actual posture parameter based upon the distance, compares the actual posture parameter with a predetermined target posture parameter stored in said microprocessor means, and generates a signal if the actual parameter is not equal to the target parameter. The biofeedback stimulus unit includes a patient-perceivable signal actuable in response to the signal generated by the microprocessor. The method comprises the steps of applying a transmitter and a receiver to first and second skin positions, respectively, which change their mutual distances during body movements due to the dilation or contraction of the areas of skin between the transmitter and receiver; measuring the travel time of signals from the transmitter to the receiver; and using the travel time measurements of the signals to calculate the distance changes.
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patent: 4665739 (1987-05-01), Mizuno
patent: 5022412 (1991-06-01), Gradovetsky et al.
patent: 5183046 (1993-02-01), Beach et al.
patent: 5220922 (1993-06-01), Borany
D. Bak, "Electromagnetic Monitoring Quantifies Motion Behavior," Design News (Sep. 1986).
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